Nasalization seems to be a part of regular speech, whether poetry or prose. Elision was definitely a part of regular and probably formal speech as well, though I don't think we know definitively when they would have used elision or hiatus.

Thanks, I thought so as well. It has turned out for me that both hiatus, elision and to an extent partial pronunciation of the obscured syllable was pronounced, as it has started to spontaneously happen in my phonetic practice, hiatus could have been a ittle weird if there was no point of emphasis in conjunction with it. There's nothing more certain beyond this, so we remain to possess the same amount of detail.